Study of auto-accelerated reactions in heterogeneous liquid/liquid mixture: Reaction products effects on mass transfer kinetics
| Autor: | J.-M. Cosmao, Nordine Mouhab, I. Ben Talouba, Laurent Balland |
|---|---|
| Přispěvatelé: | Laboratoire de Sécurité des Procédés Chimiques (LSPC), Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU) |
| Rok vydání: | 2007 |
| Předmět: |
Mass transfer coefficient
Aqueous solution Applied Mathematics General Chemical Engineering Kinetics 02 engineering and technology General Chemistry Methyl benzoate 021001 nanoscience & nanotechnology 7. Clean energy Industrial and Manufacturing Engineering Isothermal process Chemical kinetics chemistry.chemical_compound 020401 chemical engineering chemistry Chemical engineering Mass transfer Physical chemistry [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering 0204 chemical engineering 0210 nano-technology Alkaline hydrolysis ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Chemical Engineering Science Chemical Engineering Science, Elsevier, 2007, 62 (5), pp.1456-1465. ⟨10.1016/j.ces.2006.11.041⟩ |
| ISSN: | 0009-2509 |
| DOI: | 10.1016/j.ces.2006.11.041 |
| Popis: | The alkaline hydrolysis of aromatic esters exhibits auto-accelerated kinetics when performed under two phase conditions. This auto-acceleration behavior is linked to reaction products effects (surfactant and co-solvent) on mass transfer kinetics. The co-solvent increases the equilibrium concentration of organic compounds in aqueous solution, while the surfactant modifies the mass transfer coefficient and interfacial area. In this research work, the selected reaction is the alkaline hydrolysis of methyl benzoate carried out in a calorimetric reactor Mettler RC1 in isothermal semi-batch mode. The parameters estimation of mass transfer and chemical kinetics has been conducted using thermal power profile. Two functions—giving the evolution during reaction of the mass transfer coefficient and the equilibrium concentration—are proposed accordingly to surfactant and co-solvent concentrations. |
| Databáze: | OpenAIRE |
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